Airway stenosis is a congenital or common clinical disease caused by infection, tumor, trauma, tuberculosis and other diseases, and its common causes in China include tracheobronchial tuberculosis, benign or malignant tumors, etc. Implantation of airway stents has become one of the main ways for interventional treatment of airway stenosis. Airway stent develops from silicone stent to engraved stent and braided stent, and its materials and configurations have been continuously replaced and improved. However, problems such as stent displacement, tracheal granuloma, and restenosis after airway stent implantation still remain unsolved. These issues are related to the mechanical effects on tracheal tissues as a whole after stent implantation. In this paper, mechanical properties of airway stents and typical numerical simulation studies of stents and trachea were summarized. Mechanical properties include stent radial force, kink resistance and yield stress, which will be affected by stent materials, configuration design, manufacturing process, etc. Numerical simulation method can efficiently provide technical support for airway stent development, which provides references for stent material selection, design improvement and manufacturing.